Since the invention of the Desublimator in 1954 we have delivered about 1500 Desublimators worldwide. We have continuously developed the mechanical as well as the process design of the Desublimators. In particular, we have adapted the special designed fin tube system composed of rectangular fins to the newest requirement of the PA process, mainly to the increasing feedstock loading of the air.
The most important process key figures of the newest switch condensers are:
gas flow: max. 40,000 Nm³/h
capacity: max. 10,000 kg PA/cycle
efficiency: min. 99.5 %
oX-loading: 100 g/(Nm³ air) and higher
Feedstock: o-xylene, naphthalene or mixed feed